155
155
Jan 15, 2014
01/14
by
Maton, Anthea
texts
eye 155
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At head of title: Prentice Hall
Topics: Physics, Physics, Physics, Physics
144
144
Nov 14, 2013
11/13
by
Ben Simons
texts
eye 144
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In this section we introduce the method of second quantisation, the basic framework for the formulation of many-body quantum systems. The �rst part of the section focuses on methodology and notation, while the remainder is devoted to physically-motivated applications. Examples of the operator formalism are taken from various �elds of quantum condensed matter.
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/3323
710
710
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 710
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=a_g4AAAAMAAJ&oe=UTF-8
107
107
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 107
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comment 0
Semiempirical methods As a general philosophy, the purpose of semiempirical calculations is to produce good insight, not to produce bad numbers. ...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2938
94
94
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 94
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comment 0
Introduction: Heavy elements are the nightmare of theoreticians.� Many electrons� Many orbitals� Relativistic dynamics. Solution: Find a pseudopotential with a ground state which is the lowest needed valence orbital.� Local PP (the same for all values of l)� Semi-local PP (di_erent radial part for di_erent values of l)
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2939
136
136
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 136
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comment 0
Underpinning the Dirac-level theory we have quantum electrodynamics, QED. It is the theory on virtual photon processes. The two simplest terms are de-noted by the Feynman diagrams...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2940
714
714
Jan 25, 2010
01/10
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 714
favorite 0
comment 0
Book digitized by Google from the library of Ghent University and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=huEPAAAAQAAJ&oe=UTF-8
2,268
2.3K
Aug 21, 2015
08/15
by
Burke, James, 1936-; British Broadcasting Corporation. Television Service; RKO Productions; Churchill Films
movies
eye 2,268
favorite 11
comment 0
Title from data sheet
Topics: Physics, Physics, Physics
Topics: Physics, Physics, Mathematical physics
Cover title
Topics: Physics, Physics, Physics
Cover title
Topics: Physics, Physics, Physics
447
447
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 447
favorite 2
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=anEIAAAAIAAJ&oe=UTF-8
823
823
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 823
favorite 0
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=PK0IAAAAIAAJ&oe=UTF-8
757
757
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 757
favorite 1
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=J6QIAAAAIAAJ&oe=UTF-8
Topics: Physics, Physics, Mathematical physics
Topics: Physics, Physics, Mathematical physics
247
247
Nov 22, 2018
11/18
by
Hauksbee, Francis, 1666-1713
texts
eye 247
favorite 3
comment 0
7 leaves, 194 pages : (4to)
Topics: Physics, Physics -- Experiments, Physics
241
241
Sep 27, 2010
09/10
by
VanCleave, Janice Pratt
texts
eye 241
favorite 3
comment 0
Includes index
Topics: Physics, Physics, Experiments, Physics
543
543
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 543
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=CvE4AAAAMAAJ&oe=UTF-8
197
197
Nov 14, 2013
11/13
by
Vladan Vuletic
texts
eye 197
favorite 0
comment 0
Angular momentum The eigenequation associated with angular momentum reads
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/3092
297
297
Sep 13, 2018
09/18
by
Hobson, Art, 1934-
texts
eye 297
favorite 3
comment 0
xix, 530 pages : 25 cm
Topics: Physics -- Textbooks, Physics, Physics
127
127
Feb 21, 2018
02/18
by
Marion, Jerry B
texts
eye 127
favorite 7
comment 0
Topics: Physics, Physics, Natuurkunde, Physics
255
255
Nov 14, 2013
11/13
by
R. Victor Jones
texts
eye 255
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comment 0
To prepare the ground for the quantization of the electromagnetic field, let us revisit the classical treatment of a simple harmonic oscillator with one degree of freedom.
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2930
772
772
Nov 14, 2013
11/13
by
Graeme Ackland
texts
eye 772
favorite 1
comment 0
Quantum Theory encompasses our best understanding of how nature works: what will be the result of any experiment. We arbitrarily split the universe into �system� (wave function), an environment or measurement (Hamiltonian, or operator) and a measureable quantity (eigenvalue). There is no unique associated mathematics, but since all measurements on systems yield real numbers, we need mathematics which gives real eigenvalues. So it is a premise of quantum theory that any measurable quantity...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/3433
601
601
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 601
favorite 0
comment 0
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=-cI4AAAAMAAJ&oe=UTF-8
590
590
Jun 26, 2008
06/08
by
Biot, Jean-Baptiste, 1774-1862
texts
eye 590
favorite 0
comment 0
Book digitized by Google from the library of the New York Public Library and uploaded to the Internet Archive by user tpb.
Topics: Physics, Physics, Mathematical physics
Source: http://books.google.com/books?id=OnQJAAAAIAAJ&oe=UTF-8
Topics: Physics, Physics, Mathematical physics
153
153
Sep 28, 2010
09/10
by
Adams, Richard C. (Richard Crittenden); Goodwin, Peter, 1951-; Goodwin, Peter, 1951- Physics projects for young scientists
texts
eye 153
favorite 1
comment 0
Rev. ed. of: Physics projects for young scientists / Peter H. Goodwin, c1991
Topics: Physics, Physics, Physics, Experiments
30
30
Jul 30, 2015
07/15
by
Urban, Paul, editor
texts
eye 30
favorite 0
comment 0
Topics: Physics, Physics, Physics, general
116
116
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 116
favorite 0
comment 0
If the four-component Dirac equation is approximated by some two-component form, certain savings can be obtained. Typically, the small components are eliminated and two separate equations are introduced for atomic j = l �12 states. ...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2941
156
156
Sep 1, 2011
09/11
by
Goodwin, Peter, 1951-
texts
eye 156
favorite 6
comment 0
Includes bibliographical references and index
Topics: Physics, Physics, Physics, Experiments
117
117
Nov 14, 2013
11/13
by
Pekka Pyykk�
texts
eye 117
favorite 0
comment 0
The energy-expression: Subtracting the rest energy mc2 from E, the one-electron Dirac Hamiltonian...and the Dirac-Fock Hamiltonian...,The total wave function is the Slater determinant. ...
Topics: Physics, Quantum Physics, Physics
Source: http://www.flooved.com/reader/2936
392
392
Jan 11, 2018
01/18
by
Holzner, Steven
texts
eye 392
favorite 17
comment 0
Includes index
Topics: Physics, Physics, Physics
0
0.0
Jun 30, 2018
06/18
by
Joonsuk Huh; Sarah Mostame; Takatoshi Fujita; Man-Hong Yung; Alán Aspuru-Guzik
texts
eye 0
favorite 0
comment 0
In studying open quantum systems, the environment is often approximated as a collection of non-interacting harmonic oscillators, a configuration also known as the star-bath model. It is also well known that the star-bath can be transformed into a nearest-neighbor interacting chain of oscillators. The chain-bath model has been widely used in renormalization group approaches. The transformation can be obtained by recursion relations or orthogonal polynomials. Based on a simple linear algebraic...
Topics: Quantum Physics, Chemical Physics, Physics, Computational Physics
Source: http://arxiv.org/abs/1408.3176
3
3.0
Jun 30, 2018
06/18
by
Takeshi Sato; Kenichi L. Ishikawa
texts
eye 3
favorite 0
comment 0
The time-dependent multiconfiguration self-consistent-field method based on the occupation-restricted multiple active space model is proposed (TD-ORMAS) for multielectron dynamics in intense laser fields. Extending the previously proposed time-dependent complete-active-space self-consistent-field method [TD-CASSCF; Phys. Rev. A, {\bf 88}, 023402 (2013)], which divides the occupied orbitals into core and active orbitals, the TD-ORMAS method {\it further} subdivides the active orbitals into an...
Topics: Physics, Chemical Physics, Atomic Physics, Computational Physics
Source: http://arxiv.org/abs/1411.3077
0
0.0
Jun 30, 2018
06/18
by
Brian C. Sawyer; Joseph W. Britton; John J. Bollinger
texts
eye 0
favorite 0
comment 0
We employ spin-dependent optical dipole forces to characterize the transverse center-of-mass (COM) motional mode of a two-dimensional Wigner crystal of hundreds of $^9$Be$^+$. By comparing the measured spin dephasing produced by the spin-dependent force with the predictions of a semiclassical dephasing model, we obtain absolute mode temperatures in excellent agreement with both the Doppler laser cooling limit and measurements obtained from a previously published technique (B. C. Sawyer et al....
Topics: Quantum Physics, Physics, Atomic Physics, Plasma Physics
Source: http://arxiv.org/abs/1401.0672
2
2.0
Jun 30, 2018
06/18
by
J. Rapp; M. Brics; D. Bauer
texts
eye 2
favorite 0
comment 0
Natural orbital theory is a computationally useful approach to the few and many-body quantum problem. While natural orbitals are known and applied since many years in electronic structure applications, their potential for time-dependent problems is being investigated only since recently. Correlated two-particle systems are of particular importance because the structure of the two-body reduced density matrix expanded in natural orbitals is known exactly in this case. However, in the...
Topics: Physics, Quantum Physics, Atomic Physics, Computational Physics
Source: http://arxiv.org/abs/1404.4955
0
0.0
Jun 29, 2018
06/18
by
Steven B. Torrisi; Joseph W. Britton; Justin G. Bohnet; John J. Bollinger
texts
eye 0
favorite 0
comment 0
We investigate the impact of a rotating wall potential on perpendicular laser cooling in a Penning ion trap. By including energy exchange with the rotating wall, we extend previous Doppler laser cooling theory and show that low perpendicular temperatures are more readily achieved with a rotating wall than without. Detailed numerical studies determine optimal operating parameters for producing low temperature, stable 2-dimensional crystals, important for quantum information processing...
Topics: Atomic Physics, Quantum Physics, Physics, Plasma Physics
Source: http://arxiv.org/abs/1602.05144
0
0.0
Jun 29, 2018
06/18
by
R. J. Magyar
texts
eye 0
favorite 0
comment 0
Given the time-evolution of an electron charge density, the local potential in Kohn-Sham time-dependent density functional theory (KS-TDDFT) can be modeled as a sum of instantaneous and dynamic contributions by assuming a certain form of the time-dependent Kohn-Sham (TD-KS) orbitals. The instantaneous part is obtained numerically using methods from ground-state density functional theory (DFT) and the dynamic part is expressed in terms of a velocity potential that depends on the electron current...
Topics: Chemical Physics, Quantum Physics, Computational Physics, Physics
Source: http://arxiv.org/abs/1611.02636
0
0.0
Jun 30, 2018
06/18
by
Burkhard Schmidt; Bretislav Friedrich
texts
eye 0
favorite 0
comment 0
We undertook a mutually complementary analytic and computational study of the full-fledged spherical (3D) quantum rotor subject to combined orienting and aligning interactions characterized, respectively, by dimensionless parameters $\eta$ and $\zeta$. By making use of supersymmetric quantum mechanics (SUSY QM), we found two sets of conditions under which the problem of a spherical quantum pendulum becomes analytically solvable. These conditions coincide with the loci...
Topics: Quantum Physics, Physics, Atomic Physics, Chemical Physics
Source: http://arxiv.org/abs/1409.2225
1
1.0
Jun 30, 2018
06/18
by
A. S. Sanz
texts
eye 1
favorite 0
comment 0
Effective descriptions accounting for the evolution of quantum systems that are acted on by a bath are desirable. As the number of bath degrees of freedom increases and full quantum simulations turn out computationally prohibitive, simpler models become essential to understand and gain an insight into the main physical mechanisms involved in the system dynamics. In this regard, vibrational decoherence of an I$_2$ diatomics is tackled here within the framework of Markovian quantum state...
Topics: Quantum Physics, Chemical Physics, Physics, Computational Physics
Source: http://arxiv.org/abs/1402.3878
0
0.0
Jun 30, 2018
06/18
by
Sebastian Duque; Paul Brumer; Leonardo A. Pachon
texts
eye 0
favorite 0
comment 0
A classical formulation of the quantum multichromophoric theory of resonance energy transfer is developed on the basis of classical electrodynamics. The theory allows for the identification of a variety of processes of different order-in-the-interactions that contribute to the energy transfer in molecular aggregates with intra-coupling in donors and acceptor chromophores. Enhanced rates in multichromophoric resonance energy transfer are shown to be well described by this theory. Specifically,...
Topics: Biological Physics, Physics, Chemical Physics, Quantum Physics
Source: http://arxiv.org/abs/1412.8743
0
0.0
Jun 29, 2018
06/18
by
Eloisa Cuestas; Pablo Serra
texts
eye 0
favorite 0
comment 0
The localization of the valence electron of $H$, $Li$ and $Na$ atoms enclosed by three different fullerene molecules is studied. The structure of the fullerene molecules is used to calculate the equilibrium position of the endohedrally atom as the minimum of the classical $(N+1)$-body Lennard-Jones potential. Once the position of the guest atom is determined, the fullerene cavity is modeled by a short range attractive shell according to molecule symmetry, and the enclosed atom is modeled by an...
Topics: Atomic Physics, Chemical Physics, Quantum Physics, Physics
Source: http://arxiv.org/abs/1603.02978
0
0.0
Jun 30, 2018
06/18
by
Takatoshi Fujita; Joonsuk Huh; Alan Aspuru-Guzik
texts
eye 0
favorite 0
comment 0
The fluctuations of optical gap induced by the environment play crucial roles in electronic energy transfer dynamics. One of the simplest approaches to incorporate such fluctuations in energy transfer dynamics is the well known Haken-Strobl-Reineker model, in which the energy-gap fluctuation is approximated as a white noise. Recently, several groups have employed molecular dynamics simulations and excited-state calculations in conjunction to take the thermal fluctuation of excitation energies...
Topics: Biological Physics, Physics, Chemical Physics, Quantum Physics
Source: http://arxiv.org/abs/1404.3205
0
0.0
Jun 30, 2018
06/18
by
Nobuyasu Shiga; Michiaki Mizuno; Kohta Kido; Piyaphat Phoonthong; Kunihiro Okada
texts
eye 0
favorite 0
comment 0
We experimentally demonstrated that the stability of an atomic clock improves at fastest rate $\tau^{-1}$ (where $\tau$ is the averaging time) when the phase of a local oscillator is genuinely compared to the continuous phase of many atoms in a single trap (atomic phase lock). For this demonstration, we developed a simple method that repeatedly monitors the atomic phase while retaining its coherence by observing only a portion of the whole ion cloud. Using this new method, we measured the...
Topics: Quantum Physics, Physics, Atomic Physics, Plasma Physics
Source: http://arxiv.org/abs/1401.1288
3
3.0
Jun 27, 2018
06/18
by
Hong Qin; Jian Liu; Jianyuan Xiao; Ruili Zhang; Yang He; Yulei Wang; Yajuan Sun; Joshua W. Burby; Leland Ellison; Yao Zhou
texts
eye 3
favorite 0
comment 0
Particle-in-Cell (PIC) simulation is the most important numerical tool in plasma physics. However, its long-term accuracy has not been established. To overcome this difficulty, we developed a canonical symplectic PIC method for the Vlasov-Maxwell system by discretizing its canonical Poisson bracket. A fast local algorithm to solve the symplectic implicit time advance is discovered without root searching or global matrix inversion, enabling applications of the proposed method to very large-scale...
Topics: Computational Physics, Accelerator Physics, Physics, Plasma Physics
Source: http://arxiv.org/abs/1503.08334
1
1.0
Jun 30, 2018
06/18
by
Jan Olšina; Arend G. Dijkstra; Chen Wang; Jianshu Cao
texts
eye 1
favorite 0
comment 0
Excitation of a model photosynthetic molecular aggregate by incoherent sunlight is systematically examined. For a closed system, the excited state coherence induced by the sunlight oscillates with an average amplitude that is inversely proportional to the excitonic gap, and reaches a stationary amplitude that depends on the temperature and coherence time of the radiation field. For an open system, the light-induced dynamical coherence relaxes to a static coherence determined by the...
Topics: Physics, Chemical Physics, Biological Physics, Quantum Physics
Source: http://arxiv.org/abs/1408.5385
2
2.0
Jun 29, 2018
06/18
by
Juha Javanainen
texts
eye 2
favorite 0
comment 0
By putting together an abstract view on quantum mechanics and a quantum-optics picture of the interactions of an atom with light, we develop a corresponding set of C++ classes that set up the numerical analysis of an atom with an arbitrary set of angular-momentum degenerate energy levels, arbitrary light fields, and an applied magnetic field. As an example, we develop and implement perturbation theory to compute the polarizability of an atom in an experimentally relevant situation.
Topics: Atomic Physics, Quantum Physics, Physics, Computational Physics
Source: http://arxiv.org/abs/1610.00791
1
1.0
Jun 30, 2018
06/18
by
Alexandre Gondran; Michel Gondran
texts
eye 1
favorite 0
comment 0
Playing the game of heads or tails in zero gravity demonstrates that there exists a contextual "measurement" in classical mechanics. When the coin is flipped, its orientation is a continuous variable. However, the "measurement" that occurs when the coin is caught by clapping two hands together gives a discrete value (heads or tails) that depends on the context (orientation of the hands). It is then shown that there is a strong analogy with the spin measurement of the...
Topics: Physics, Physics Education, Quantum Physics, Classical Physics
Source: http://arxiv.org/abs/1703.07550
3
3.0
Jun 28, 2018
06/18
by
K. Tsampourakis; I. K. Kominis
texts
eye 3
favorite 0
comment 0
Chemically induced dynamic nuclear polarization is a ubiquitous phenomenon in photosynthetic reaction centers. The relevant nuclear spin observables are a direct manifestation of the radical-pair mechanism. We here use quantum trajectories to describe the time evolution of radical-pairs, and compare their prediction of nuclear spin observables to the one derived from the radical-pair master equation. While our approach provides a consistent description, we unravel a major inconsistency within...
Topics: Biological Physics, Quantum Physics, Chemical Physics, Physics
Source: http://arxiv.org/abs/1506.08534
